Endangered Species Law & Policy

On March 29, 2025, the U.S. District Court for the Western District of Texas (District Court) vacated the Endangered Species Act (ESA) special 4(d) rule for the northern distinct population segment (DPS) of the lesser prairie-chicken (LEPC). The 4(d) rule had prohibited, in most circumstances, “take” of the species’ northern DPS. Plaintiffs challenged the 4(d) rule in a number of ways, including on grounds that the U.S. Fish and Wildlife Service (Service) should have considered the economic impact of the 4(d) rule prior to its promulgation. As a result of the vacatur, it ...

On July 18, 2024, the U.S. Court of Appeals for the Fifth Circuit (Fifth Circuit) vacated a decision by the U.S. District Court for the Northern District of Texas (District Court) that upheld the U.S. Department of Labor’s (DOL) 2022 environmental, social and governance (ESG) rule (ESG Rule). The ESG Rule, issued pursuant to President Biden’s Executive Order, “Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis,” allows Employee Retirement Income Security Act (ERISA) fiduciaries to give weight to “the economic effects of ...

On February 28, 2024, the U.S. District Court for the District of Columbia upheld the U.S. Fish and Wildlife Service’s (Service) denial of a petition filed by the New Mexico Cattle Growers’ Association (Cattle Growers) urging the Service to remove the southwestern willow flycatcher (Empidonax traillii extimus) (flycatcher) from the list of endangered species (Petition). The Cattle Growers had argued that the Service’s denial of the Petition, and specifically the agency’s finding that the flycatcher is a valid subspecies of the unlisted willow flycatcher, violated the ...

On February 6, the U.S. District Court for the Northern District of California sided with the Bureau of Reclamation (Reclamation) and plaintiffs Institute for Fisheries Resources, Pacific Coast Federation of Fishermen’s Associations, and the Yurok Tribe, in holding that an order governing Reclamation’s operation of Upper Klamath Lake (UKL) from the Oregon Water Resources Department (OWRD) is preempted by the Endangered Species Act (ESA). The order, issued in the midst of a recent drought to meet the needs of irrigators, mandated Reclamation to “immediately preclude or ...

Last week, a decision out of the U.S. District Court for the Northern District of California restored Endangered Species Act (ESA) protections for the gray wolf (Canis lupus) across most of the contiguous United States.

In 2020, the U.S. Fish and Wildlife Service (Service) issued a final rule removing federal protections for the last two remaining gray wolf entities listed as threatened or endangered under the ESA.  The final rule asserted delisting was warranted because neither the Minnesota entity nor the 44-state entity qualified as a species, subspecies, or distinct population ...

On September 23, 2014, the U.S. District Court for the District of Columbia invalidated the final rule issued by the U.S. Fish and Wildlife Service (Service) delisting the Wyoming Gray Wolf distinct population segment from the Federal List of Endangered and Threatened Species, concluding that Wyoming's regulatory protections were unenforceable and therefore inadequate for purposes of delisting the species.  Despite this conclusion, the court still affirmed the Service's finding that the species has "recovered" and that it was not "endangered or threatened within a ...